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Colour filter for liquid crystal display device

A color filter and liquid crystal display technology, applied in the field of color filters, can solve the problems of abnormal liquid crystal alignment, unable to ensure the thickness uniformity of the display area, and reduce the flatness of the substrate film layer, so as to improve the flatness and avoid the liquid crystal Abnormal alignment, improve the effect of frame light leakage problem

Inactive Publication Date: 2007-01-03
INNOLUX CORP
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  • Abstract
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Problems solved by technology

However, if the thickness of the resin black matrix is ​​directly increased to increase the optical density, it will form obvious protrusions where the black matrix overlaps with the color photoresist, thereby reducing the flatness of the entire substrate film layer.
At the same time, because the uniformity of the thickness of the display area cannot be ensured, it may even lead to abnormal liquid crystal alignment.

Method used

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  • Colour filter for liquid crystal display device
  • Colour filter for liquid crystal display device
  • Colour filter for liquid crystal display device

Examples

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Embodiment Construction

[0025] The color filter (CF) of the liquid crystal display of the present invention mainly stacks a light shielding on the black resin film of the CF frame to increase the optical density of the CF frame and form a frame with at least two resin layer films.

[0026] Please refer to figure 1 , Shows a schematic diagram of a color filter substrate. The substrate 100 of the color filter includes a border region 110 and an array region 120. The border area 110 surrounds the display area 120.

[0027] When manufacturing color filters, the black matrix process is first carried out, and then the process of RGB color photoresist is carried out. Please refer to figure 2 , Shown along figure 1 An enlarged view of the section line 2-2. The black matrix process is to form a black matrix (Black Matrix; BM) on the substrate 100 of the color filter. Such as figure 2 As shown, the first black resin film 210 is disposed in the frame area 110, and the second black resin film 220 is disposed in ...

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Abstract

A colored optical filter of liquid-crystal display, including: the base board, the first black resin film, the second black resin film and the shadow layer. The frame area of the base board surrounds the display area. The first black resin film and the second black resin film configures at the frame area and the display area respectively. The display area is with the colored photoresisting image, the two neighboring colored image covers the second black resin film by the part overlapping mode. The shadow layer configures at the first black resin film and nearly covers it. The invention can improve the frame leak light problem effectively, enhances the plainness of the whole base board film layer.

Description

Technical field [0001] The present invention relates to a color filter of a display, and more particularly to a color filter of a liquid crystal display with a resin black matrix (Black Matrix; BM). Background technique [0002] The liquid crystal display panel can produce color changes, mainly through the red (R), green (G), and blue (B) color photoresist patterns of the color filter (ColorFilter; hereinafter referred to as CF) to provide the hue, forming Color display screen. At present, the mainstream production method of color filters is to adopt the pigment dispersion method, and the manufacturing process of color filters mainly includes black matrix (Black Matrix; BM) engineering and RGB (red, green and blue) color resist engineering. In the traditional black matrix process, a metal layer of chromium (Cr) or chromium oxide is formed by sputtering on a glass substrate, and the black matrix is ​​formed through processes such as exposure, development, and etching. After the bl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G02B5/23
Inventor 高为智
Owner INNOLUX CORP
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